US20090078511A1 - Brake Mechanism for a Caster Wheel on a Offset Rotary Mower - Google Patents

Brake Mechanism for a Caster Wheel on a Offset Rotary Mower Download PDF

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Publication number
US20090078511A1
US20090078511A1 US11/941,028 US94102807A US2009078511A1 US 20090078511 A1 US20090078511 A1 US 20090078511A1 US 94102807 A US94102807 A US 94102807A US 2009078511 A1 US2009078511 A1 US 2009078511A1
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US
United States
Prior art keywords
brake mechanism
caster wheel
caster
rotary mower
offset rotary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/941,028
Inventor
Stanley Joseph Boyko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Batoche AG Design
Original Assignee
Batoche AG Design
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Batoche AG Design filed Critical Batoche AG Design
Publication of US20090078511A1 publication Critical patent/US20090078511A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/10—Brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0021—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of a mounting pin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0042—Double or twin wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/023—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/026—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism being actuated remotely, e.g. by cable or electrically

Definitions

  • This invention is in the field of rotary mowers and in particular a brake mechanism for a caster wheel on an offset rotary mower.
  • the brake mechanism allows the caster wheel to temporarily become a fixed wheel assisting in reducing side draft on the towing vehicle when the rotary mower is on a steep slope.
  • the brake mechanism further assists by enabling the rotary mower to be backed-up on the side slope of the ditch.
  • Offset rotary mowers are used to maintain roadside ditches. Such offset apparatus' for ditch maintenance are disclosed in U.S. Pat. No. 6,854,250 to Boyko and U.S. Pat. No. 6,739,612 to Calistro. These offset rotary mowers require front wheels to support the front end of the mower when in the offset position. These wheels or wheel is usually a caster wheel to allow free movement of the mower from a tow behind position to an offset position in the ditch.
  • a side draft load on the tractor This load varies directly with the grade of the slope, the steeper the slope the greater the side draft load. This side draft load can result in premature wear on the tractor tires as well as loss of steering control if the side draft load exceeds the weight of the tractor.
  • a second problem that occurs with the offset mower is its inability to be backed-up when on the side slope of the ditch.
  • the caster wheels at the front results in the rotary mower always moving down the ditch slope when attempting to back-up. This inability to back-up can result in costly downtime when the mower inadvertently runs into an obstacle like a culvert and becomes hung up.
  • the braking mechanism on the front caster wheel or wheels of the offset mower will allow the offset mower apparatus the ability to back-up when in the offset position on the side slope of the ditch.
  • the braking mechanism on the front caster wheel or wheels of the offset mower apparatus be operative from the tractor seat allowing the operator ease of applying the brake mechanism as needed.
  • the present invention provides in one aspect a brake mechanism adapted for attachment to the front caster wheel on an offset mower apparatus.
  • the brake mechanism is attached about the vertical caster axis of the front caster wheel to control caster at one end and attached at the tractor via hydraulic lines or electric cable running between, allowing the brake mechanism to be operative from the tractor seat.
  • the brake mechanism can be applied through the hydraulic lines or electric cable. This causes the caster wheel(s) at the front to become a fixed wheel(s) allowing the draft load of the mower to shift from an exclusively side draft load on the tractor to a shared load on both tractor and the front wheel assembly of the mower apparatus; thereby reducing the side draft load on the tractor and improving steering control while decreasing rear tire wear on the tractor.
  • the brake mechanism adapted for attachment to the front caster wheel(s) on an offset mower allows the offset rotary mower apparatus to be backed-up straight when on the side of the ditch.
  • This brake mechanism when applied fixes the front caster wheel(s) so that the rotary mower apparatus moves in a straight line as it backs up rather then falling down the slope of the ditch.
  • FIG. 1 is the front isometric view of an offset rotary mower apparatus with the brake mechanism of the embodiment of the invention on the front caster wheels. Detail of the brake mechanism is shown.
  • FIG. 2 is the rear isometric view of the brake mechanism of the embodiment of the invention on the front caster wheel assembly of an offset rotary mower apparatus.
  • FIG. 1 illustrates the brake mechanism of the invention for attachment to a caster wheel of an offset rotary mower apparatus to enable a back-up maneuver on a side slope of a ditch and to assist the tractor on steep slopes. This is done by remotely applying the brake mechanism 1 . This results in the front caster wheels 7 temporarily becoming a fixed wheel system enabling the offset rotary mower apparatus to be backed-up on the slope of the ditch, because the wheels will follow straight instead of falling down the slope and jack knifing. When the brake mechanism 1 is applied on steep slopes as needed, the fixed wheels will allow the front wheel assembly FWA to take on some of the draft load of the mower. Thus improving steering control on the tractor and reducing rear tire wear.
  • the brake mechanism 1 comprises a brake caliper 2 , a brake rotor 3 and hydraulic lines 4 or an electric cable for actuating the brake caliper 2 remotely from the tractor.
  • FIG. 2 illustrates the brake mechanism of the invention as it is attached to the front caster wheel(s) 7 of an offset mower apparatus.
  • the brake caliper 2 is fixedly attached to the front cross member 5 of the front wheel assembly FWA.
  • the brake rotor 3 is mounted to the vertical shaft 6 .
  • the vertical shaft 6 is for caster about the caster axis CA.
  • the hydraulic lines 4 are connected to the caliper 2 at one end and to the tractor at the other end, by a separate circuit (or can be tapped into an existing hydraulic circuit) for remote control of the hydraulics to the caliper 2 .
  • the brake caliper 2 When the caliper 2 is activated by the hydraulics 4 or an electric cable the brake caliper 2 applies pressure to the brake rotor 3 preventing the shaft 6 from castering about its CA thereby making the caster wheel(s) 7 a fixed wheel(s).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)
  • Braking Arrangements (AREA)

Abstract

A brake mechanism for a caster wheel(s) on an offset rotary mower apparatus wherein a hydraulic line or electric cable is connected at one end to the brake mechanism and at the other end to the tractor for remote control operation of the brake mechanism. The brake mechanism which is attached about the vertical caster axis of the caster wheel allows the caster wheel(s) to temporarily become a fixed wheel(s) when needed, assisting in reducing side draft load on the towing vehicle when the offset rotary mower apparatus is on steep slopes and enabling the offset rotary mower apparatus to be backed-up on the side slope of a ditch.

Description

  • This invention is in the field of rotary mowers and in particular a brake mechanism for a caster wheel on an offset rotary mower. The brake mechanism allows the caster wheel to temporarily become a fixed wheel assisting in reducing side draft on the towing vehicle when the rotary mower is on a steep slope. The brake mechanism further assists by enabling the rotary mower to be backed-up on the side slope of the ditch.
    • BACKGROUND OF THE INVENTION
  • Offset rotary mowers are used to maintain roadside ditches. Such offset apparatus' for ditch maintenance are disclosed in U.S. Pat. No. 6,854,250 to Boyko and U.S. Pat. No. 6,739,612 to Calistro. These offset rotary mowers require front wheels to support the front end of the mower when in the offset position. These wheels or wheel is usually a caster wheel to allow free movement of the mower from a tow behind position to an offset position in the ditch. When the mower is in the offset position from the tractor there is a side draft load on the tractor. This load varies directly with the grade of the slope, the steeper the slope the greater the side draft load. This side draft load can result in premature wear on the tractor tires as well as loss of steering control if the side draft load exceeds the weight of the tractor.
  • A second problem that occurs with the offset mower is its inability to be backed-up when on the side slope of the ditch. The caster wheels at the front results in the rotary mower always moving down the ditch slope when attempting to back-up. This inability to back-up can result in costly downtime when the mower inadvertently runs into an obstacle like a culvert and becomes hung up.
  • It would be desirable to have a mechanism that would allow the offset mower the ability to be backed-up when on the side slope of the ditch to increase the versatility of the apparatus and prevent costly downtime.
  • It would be desirable to have a mechanism that would reduce the side-draft load on the tractor when the mower is on a steep grade of the ditch increasing steering control and reducing tire wear.
  • It would be desirable if the mechanism were operative from the tractor seat for ease of operation.
    • SUMMARY OF THE INVENTION
  • It is the first objective of the invention to provide a braking mechanism that when attached to the front caster wheel or wheels of an offset mower apparatus it would allow the front wheels of rotary mower apparatus to hold some of the draft load thereby reducing the side draft load on the towing vehicle.
  • It is a second objective of the present invention that the braking mechanism on the front caster wheel or wheels of the offset mower will allow the offset mower apparatus the ability to back-up when in the offset position on the side slope of the ditch.
  • It is a further object of the present invention that the braking mechanism on the front caster wheel or wheels of the offset mower apparatus be operative from the tractor seat allowing the operator ease of applying the brake mechanism as needed.
  • The present invention provides in one aspect a brake mechanism adapted for attachment to the front caster wheel on an offset mower apparatus. The brake mechanism is attached about the vertical caster axis of the front caster wheel to control caster at one end and attached at the tractor via hydraulic lines or electric cable running between, allowing the brake mechanism to be operative from the tractor seat.
  • When the offset mower apparatus is traveling on the side of a ditch and a steeper area approaches the brake mechanism can be applied through the hydraulic lines or electric cable. This causes the caster wheel(s) at the front to become a fixed wheel(s) allowing the draft load of the mower to shift from an exclusively side draft load on the tractor to a shared load on both tractor and the front wheel assembly of the mower apparatus; thereby reducing the side draft load on the tractor and improving steering control while decreasing rear tire wear on the tractor.
  • In a second aspect, the brake mechanism adapted for attachment to the front caster wheel(s) on an offset mower allows the offset rotary mower apparatus to be backed-up straight when on the side of the ditch. This brake mechanism when applied fixes the front caster wheel(s) so that the rotary mower apparatus moves in a straight line as it backs up rather then falling down the slope of the ditch.
    • DESCRIPTION OF THE DRAWINGS
  • While the invention is claimed in the concluding portions hereof, preferred embodiments are provided in the accompany detailed description which may be understood in conjunction with the accompanying diagrams where like parts in each of the several diagrams are labeled with like numbers, and where:
  • FIG. 1 is the front isometric view of an offset rotary mower apparatus with the brake mechanism of the embodiment of the invention on the front caster wheels. Detail of the brake mechanism is shown.
  • FIG. 2 is the rear isometric view of the brake mechanism of the embodiment of the invention on the front caster wheel assembly of an offset rotary mower apparatus.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • FIG. 1 illustrates the brake mechanism of the invention for attachment to a caster wheel of an offset rotary mower apparatus to enable a back-up maneuver on a side slope of a ditch and to assist the tractor on steep slopes. This is done by remotely applying the brake mechanism 1. This results in the front caster wheels 7 temporarily becoming a fixed wheel system enabling the offset rotary mower apparatus to be backed-up on the slope of the ditch, because the wheels will follow straight instead of falling down the slope and jack knifing. When the brake mechanism 1 is applied on steep slopes as needed, the fixed wheels will allow the front wheel assembly FWA to take on some of the draft load of the mower. Thus improving steering control on the tractor and reducing rear tire wear. The brake mechanism 1 comprises a brake caliper 2, a brake rotor 3 and hydraulic lines 4 or an electric cable for actuating the brake caliper 2 remotely from the tractor.
  • FIG. 2 illustrates the brake mechanism of the invention as it is attached to the front caster wheel(s) 7 of an offset mower apparatus. The brake caliper 2 is fixedly attached to the front cross member 5 of the front wheel assembly FWA. The brake rotor 3 is mounted to the vertical shaft 6. The vertical shaft 6 is for caster about the caster axis CA. The hydraulic lines 4 are connected to the caliper 2 at one end and to the tractor at the other end, by a separate circuit (or can be tapped into an existing hydraulic circuit) for remote control of the hydraulics to the caliper 2. When the caliper 2 is activated by the hydraulics 4 or an electric cable the brake caliper 2 applies pressure to the brake rotor 3 preventing the shaft 6 from castering about its CA thereby making the caster wheel(s) 7 a fixed wheel(s).
  • The foregoing is considered as illustrative only of the principals of the invention. Further, since numerous changes and modifications will occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all such suitable changes or modifications in structure or operation which may be resorted to fall within scope of the claimed invention.

Claims (4)

1. A brake mechanism adapted for attachment to a caster wheel of an offset rotary mower apparatus wherein the brake mechanism is attached about the caster axis of the caster wheel to control caster.
2. A brake mechanism adapted for attachment to a caster wheel of an offset rotary mower apparatus wherein the brake mechanism is attached about the caster axis of the caster wheel to control caster and wherein hydraulic lines or electric cable are connected to the brake mechanism at one end and at the other end to the tractor to allow remote control operation of the brake mechanism from the tractor seat.
3. A brake mechanism adapted for attachment to a front caster wheel of an offset rotary mower apparatus; the brake mechanism comprises;
a brake caliper
a brake rotor
and hydraulic lines or an electric cable;
wherein the brake caliper is fixedly attached to the front cross member of the front caster wheel of an offset rotary mower apparatus and the brake rotor is fixedly attached to the vertical shaft that casters on the caster axis on the front caster wheel.
4. The brake mechanism of claim 3 wherein the hydraulic lines or electric cable are connected to the brake caliper at one end and to the controls within the tractor at the other end to allow remote control operation of the brake mechanism from the tractor seat.
US11/941,028 2007-09-21 2007-11-15 Brake Mechanism for a Caster Wheel on a Offset Rotary Mower Abandoned US20090078511A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002598715A CA2598715A1 (en) 2007-09-21 2007-09-21 Brake mechanism for a caster wheel on offset rotary mower
CA2598715 2007-09-21

Publications (1)

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US20090078511A1 true US20090078511A1 (en) 2009-03-26

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US11/941,028 Abandoned US20090078511A1 (en) 2007-09-21 2007-11-15 Brake Mechanism for a Caster Wheel on a Offset Rotary Mower

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CA (1) CA2598715A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090184491A1 (en) * 2008-01-18 2009-07-23 Highline Manufacturing Ltd. Steering for towed implements
US20100122875A1 (en) * 2008-11-18 2010-05-20 Corriher Ted H Braking system for front caster wheels of a self-propelled vehicle
US8511417B2 (en) 2008-11-18 2013-08-20 Ted H. CORRIHER Braking system for front caster wheels of a self-propelled vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368806A (en) * 1979-11-09 1983-01-18 Pietro Laverda S.P.A. Castor wheel support assembly for an agricultural machine
US4787195A (en) * 1987-06-17 1988-11-29 Ferris Industries, Inc. Power lawnmower with hydrostatic drive
US4895210A (en) * 1988-12-12 1990-01-23 Witzel H D Clutch-brake steering for small agricultural machines
US5713189A (en) * 1995-08-16 1998-02-03 Ransomes America Corporation Interactive brake system for electric riding mower
US6170242B1 (en) * 1997-07-22 2001-01-09 Ferris Industries, Inc. Lawn mower having independent drive wheel suspension
US6240713B1 (en) * 1998-07-11 2001-06-05 Black & Decker Inc. Mower having castor wheel assemblies with rotational braking mechanisms
US6739612B2 (en) * 2002-10-02 2004-05-25 Schulte Industries Ltd. Offset arm for towing rotary mowers and the like
US6854250B2 (en) * 2002-01-25 2005-02-15 Stanley Joseph Boyko Variable offset rotary mower apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368806A (en) * 1979-11-09 1983-01-18 Pietro Laverda S.P.A. Castor wheel support assembly for an agricultural machine
US4787195A (en) * 1987-06-17 1988-11-29 Ferris Industries, Inc. Power lawnmower with hydrostatic drive
US4895210A (en) * 1988-12-12 1990-01-23 Witzel H D Clutch-brake steering for small agricultural machines
US5713189A (en) * 1995-08-16 1998-02-03 Ransomes America Corporation Interactive brake system for electric riding mower
US6170242B1 (en) * 1997-07-22 2001-01-09 Ferris Industries, Inc. Lawn mower having independent drive wheel suspension
US6240713B1 (en) * 1998-07-11 2001-06-05 Black & Decker Inc. Mower having castor wheel assemblies with rotational braking mechanisms
US6854250B2 (en) * 2002-01-25 2005-02-15 Stanley Joseph Boyko Variable offset rotary mower apparatus
US6739612B2 (en) * 2002-10-02 2004-05-25 Schulte Industries Ltd. Offset arm for towing rotary mowers and the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090184491A1 (en) * 2008-01-18 2009-07-23 Highline Manufacturing Ltd. Steering for towed implements
US7971886B2 (en) * 2008-01-18 2011-07-05 Highline Manufacturing Ltd. Steering for towed implements
US20100122875A1 (en) * 2008-11-18 2010-05-20 Corriher Ted H Braking system for front caster wheels of a self-propelled vehicle
US8083020B2 (en) * 2008-11-18 2011-12-27 Corriher Ted H Braking system for front caster wheels of a self-propelled vehicle
US8511417B2 (en) 2008-11-18 2013-08-20 Ted H. CORRIHER Braking system for front caster wheels of a self-propelled vehicle

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Publication number Publication date
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